Separable fastener and construction equipped therewith



SEPARBLE FASTENER AND CONSTRUCTION EQUIPPED THEREWITH Filed Jan. 26. 1923 55M @M-M Patented Nov. 22, 1927.

WED STT DAVID BOUQUE, OF AMESBURY,

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MASSACHUSETTS,"Assisnon To ej: w. J. MURHY SEPARABLE FASTENERAND CONSTRUCTION EQITIIPECD THREWITH.

Application filed January 26, 1923."A Serial 4No. 615,059.

rIhis invention relates to separable ,fas teners and tor constructions equipped with the saine and the particular purpose is to provide an article which comprises a thin fr covering or skin of sheet material to which another element is to be secured by means of separable fasteners with a proper equipment of fastener elements. Thus separable fasteners find a wide eld in the fastening of curtains to automobile bodies and these bod* ies are frequently constructed of a wooden frame-work covered with relatively thin sheet metal. My invention provides a form of fastener element such as a turnbutton which may be applied to such bodies with superior results.

My invention will best be understood by the following description of 'an illustrative embodiment thereof taken in connection with the accompanyingl drawing which represents a section through a portion of an automobile body with a turnbutton fastener element applied thereto, said element being partly broken away.

Referring to the drawing I have there illustrated a frame member 5 of an automobile body to which is applied a. covering 7 of relatively thin sheet metal. In the construction of these bodies there is usually a slight clearance or space as indicated at 9 between the frame member 5 and the covering 7 and in the application of fastener elements thereto when they are attached through the covering 7 and anchored to the frame member 5 I have found that the covering 7 is usually distorted and pressed down against the member 5 in the action of securing the fastener, marring the covering 7 and giving an unsightly appearance to the entire job.

In the drawing I have illustrated aV turnbutton fastener suoli as is shown in my Patent No. 1,417,658, May 30. 1922. asapplied with its base 11 resting against the covering 7. In the use of the y on the curtain or similar' element to be secured embraces the base 11 and the head 12 is turned into traversing position to retain the grommet. To secure such fasteners in position on a wooden member such as thev rame piece 7 a wood screw is an excellent expedient and herein a screw 13 is provided with a head 15 which fltsthe hollow sheet metal base 11 of the fastener, the marginal portions of which base embrace and are fastener the grommet l projecting as a threaded shank permitting the lentire fastener to be attached in posi-` tion in the same manner as a screw is. driven by the use of a suitable socket wrench fitting over the fastener base. In setting up a screw in this manner, however, the covering 7 would be pressed down by the base of the lfastener into contact with the frame member 5 and I therefore provide suitable stop means for limiting the penetration of th'e'screw so that the base of the fastener 11 will be spaced in determinate relation to the frame member 5. In the present embodiment. of the invention wherein the fastener is provided with a. central threaded shank permitting it to be screwed in as a whole this stop means is preferably organized coaxially with the screw to permit the screwing ih action and herein a shoulder 17 is provided near `the root of the screw by forming the screw with having a smaller portion tration of the screw and prevents the base.

of the fastener from pressing in on the covering 7 in such manner as to distort the covering and cause dent or depression therein.

As the space between the frame 5 'and covering 7 may vary the hole in the `latter which receives the secondary head or shoul` der 17 l and this hole may be made of uniform depth corresponding to the height of said shoulder and entering more or less the frame member5 as indicated at 19 in the drawing. The penetration of the screw 13 is thusfdefinitely limited by the contact of the shoulder with the bottom of the recess at a definite distance from the outer'face of `the covering 7.

Having thus described in detail the par ticular embodiment of my invention herein' shown as illustrative of the principles thereof, what I claim as new and desire to secure by Letters Patent I shall express in the following claims.

In combination with a supporting eled` shoulder 17 and a larger portion 15 which` a visible or unsightly may bek drilled or otherwise formed ing and contacting with said supporting element.

3. In combination with a supporting elcinent having a covering of sheet material, a separable fastener element applied to said covering, a spacing means projecting from said element through said covering and seated in a recess in the supporting element and a screw also carried by said fastener element entering the base of the recess.

In, testimony whereof, I have signed my name to this specification.

DAVID BOURQUE. 

